/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package hivemall.mix.client;

import hivemall.mix.MixMessageDecoder;
import hivemall.mix.MixMessageEncoder;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelPipeline;
import io.netty.channel.socket.SocketChannel;
import io.netty.handler.ssl.SslContext;

public final class MixClientInitializer extends ChannelInitializer<SocketChannel> {

    private final MixClientHandler responseHandler;
    private final SslContext sslCtx;

    public MixClientInitializer(MixClientHandler msgHandler, SslContext sslCtx) {
        if (msgHandler == null) {
            throw new IllegalArgumentException();
        }
        this.responseHandler = msgHandler;
        this.sslCtx = sslCtx;
    }

    @Override
    protected void initChannel(SocketChannel ch) throws Exception {
        ChannelPipeline pipeline = ch.pipeline();
        if (sslCtx != null) {
            pipeline.addLast(sslCtx.newHandler(ch.alloc()));
        }

        MixMessageEncoder encoder = new MixMessageEncoder();
        MixMessageDecoder decoder = new MixMessageDecoder();
        pipeline.addLast(encoder, decoder, responseHandler);
    }

}
